Radiator and electrical equipment

Abstract

The utility model discloses a radiator and electrical equipment, and belongs to the technical field of radiator manufacturing. The radiator comprises a condenser, an evaporator, an air pipe and a liquid pipe. The evaporator comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with first fins and / or the second surface is provided with second fins; an outlet of the evaporator communicates with an inlet of the condenser through an air pipe. An inlet of the evaporator is communicated with an outlet of the condenser through a liquid pipe. According to the technical scheme, a refrigerant absorbs heat in the evaporator to evaporate, then flows into the condenser through the air pipe to release heat and condense, and finally returns to the evaporator through the liquid pipe. By reasonably arranging the fins on the evaporator, the normal heat dissipation capability of the radiator and the self-cooling heat dissipation capability of the radiator when the fan does not rotate can be improved, so that the power device is prevented from being exploded due to overhigh temperature, and the power density of the power cabinet is further improved.

Description

Technical Field

[0001] This application belongs to the technical field of radiator manufacturing, and particularly relates to a radiator and an electrical device. Background Art

[0002] Some devices use phase change radiators for heat dissipation. However, due to the existing structural characteristics of phase change radiators, the evaporator and the condenser are generally connected by pipelines. Heat needs to be transferred to the condenser to accelerate heat dissipation. When the heat dissipation capacity of the condenser is insufficient, the heat dissipation performance of the entire phase change radiator is difficult to meet the requirements, and there is room for improvement. Summary of the Utility Model

[0003] This application aims to solve at least one of the technical problems existing in the related art. For this purpose, this application provides a radiator and an electrical device, which can improve the normal heat dissipation capacity of the radiator and the self-cooling heat dissipation capacity of the radiator when the fan is not rotating.

[0004] In a first aspect, this application provides a heat exchanger, comprising:

[0005] A condenser;

[0006] An evaporator, the evaporator includes a first surface and a second surface arranged opposite to each other, wherein, a first fin is provided on the first surface and / or a second fin is provided on the second surface;

[0007] An air pipe, the outlet of the evaporator is communicated with the inlet of the condenser through the air pipe;

[0008] A liquid pipe, the inlet of the evaporator is communicated with the outlet of the condenser through the liquid pipe.

[0009] The refrigerant absorbs heat and evaporates in the evaporator, thereby cooling the power device in the installation area on the first surface of the evaporator, and then flows through the air pipe to the condenser to release heat and condense. The condenser is arranged in an outer cavity and dissipates heat by air cooling. Finally, it returns to the evaporator through the liquid pipe to complete a complete refrigeration cycle and ensure the normal operation of the refrigeration system.

[0010] At least one of the first surface and the second surface of the evaporator is provided with a self-cooling heat dissipation structure, such as being made into a cavity body or a solid fin or tooth piece inside, to improve the normal heat dissipation capacity of the radiator and the self-cooling heat dissipation capacity of the radiator when the fan is not rotating.

[0011] According to an embodiment of this application, the first surface has an installation area for installing a power device. When the second fin is provided on the second surface, the second fin is at least provided at a position corresponding to the installation area.

[0012] The second fin is at least disposed at a position corresponding to the installation area, which can improve the heat dissipation capacity of the radiator, thereby effectively cooling the power device located in the installation area on the first surface and preventing local overheating of the power device.

[0013] According to an embodiment of the present application, the second fin is spaced apart from the outlet and the inlet of the evaporator.

[0014] The second fin is kept at a certain interval from the inlet and outlet of the evaporator, which can prevent the refrigerant in the evaporator from directly contacting the outer surface of the second fin, thereby preventing unnecessary condensation or evaporation of the refrigerant on the second fin and helping to maintain the heat dissipation efficiency of the evaporator.

[0015] According to an embodiment of the present application, the height of the second fin in the third direction is lower than the height of the gas pipe and the liquid pipe to the second surface.

[0016] Through the design that the height of the second fin in the third direction is lower than the height of the gas pipe and the liquid pipe to the second surface, the structure of the evaporator can be made more compact, which helps to improve the space utilization rate.

[0017] According to an embodiment of the present application, there are multiple second fins, and the multiple second fins are spaced apart and distributed.

[0018] The inlet of the evaporator is located at one end of the evaporator away from the condenser, which can improve the heat exchange efficiency of the system. At the same time, the multiple second fins are spaced apart and distributed, which can make the structure of the evaporator more compact and help to improve the space utilization rate.

[0019] According to an embodiment of the present application, the multiple second fins are divided into multiple groups, and the outlet and / or the inlet of the evaporator are located between adjacent groups of the second fins.

[0020] By reasonably arranging the second fins, the heat dissipation area of the evaporator can be increased, while ensuring a stable flow state of the refrigerant in the evaporator, reducing eddy currents and dead zones, improving the heat exchange efficiency, and enhancing the structural stability of the evaporator.

[0021] According to an embodiment of the present application, when both the outlet and the inlet of the evaporator are provided on the second surface, the projections of the gas pipe, the liquid pipe and the second fin on the second surface are arranged staggered in the first direction.

[0022] The projections of the trachea, the liquid pipe, and the second fin on the second surface are arranged staggeredly along the length direction of the evaporator, which can rationally utilize the space, enhance the overall structural stability of the evaporator, make the evaporator more stable and reliable during operation, reduce the risk of damage caused by vibration or impact, and at the same time reduce the flow resistance of the refrigerant in the evaporator, which helps the uniform distribution and flow of the refrigerant in the evaporator, thereby improving the heat exchange efficiency.

[0023] According to an embodiment of the present application, the height of the second fin in the third direction is higher than the height of the trachea and the liquid pipe to the second surface, and the third direction intersects with the first direction.

[0024] Through the design that the height of the second fin is higher than the height of the trachea and the liquid pipe to the second surface, the heat dissipation effect and the air flow distribution can be optimized, the energy efficiency ratio of the evaporator can be improved, and thus the heat dissipation efficiency of the system can be improved.

[0025] According to an embodiment of the present application, the second fin extends from one end to the other end in the second direction, and the first direction, the second direction, and the third direction intersect pairwise.

[0026] Through the design that the second fin extends from one end to the other end in the second direction, the heat dissipation effect and the air flow distribution can be optimized, the energy efficiency ratio of the evaporator can be improved, and thus the heat dissipation efficiency of the system can be improved.

[0027] According to an embodiment of the present application, when the first fin is provided on the first surface, the first fin is spaced apart from the installation area.

[0028] The first fin is spaced apart from the installation area, but it is still a part of the overall structure of the evaporator, which can provide certain support for the evaporator and enhance the stability of the overall structure. At the same time, the space between the first fin and the installation area can ensure the free flow of air around the evaporator, reduce the flow resistance, and improve the heat exchange efficiency.

[0029] According to an embodiment of the present application, there are multiple first fins, and the multiple first fins are spaced apart and distributed along the first direction, and the first fins are arranged at both ends of the first direction on the first surface, and the installation area is located between the first fins at both ends.

[0030] The multiple first fins are spaced apart and distributed along the first direction, the first fins are arranged at both ends of the first direction on the first surface, and the installation area is located between the first fins at both ends, which can improve the heat dissipation performance of the evaporator, prevent local overheating of the evaporator, protect the installation area, and improve the structural stability.

[0031] According to an embodiment of the present application, there are a plurality of the first fins, and the plurality of the first fins are spaced apart along a first direction and arranged at at least one end of the first surface in a second direction.

[0032] Arranging the first fins at at least one end of the first surface in the second direction can make full use of space, optimize the fluid flow path, and facilitate maintenance and cleaning, which helps improve the heat dissipation performance and service efficiency of the evaporator.

[0033] In a second aspect, the present application provides an electrical device, including:

[0034] A power device;

[0035] According to an embodiment of the present application, the power device is installed on the evaporator.

[0036] By absorbing the heat generated by the power device through the evaporator and transferring it to other media, the temperature of the power device can be effectively reduced, which helps ensure the stable operation of the power device and prevent performance degradation or damage caused by overheating.

[0037] According to an embodiment of the present application, the electrical device further includes: a box body and a fan.

[0038] The box body forms a first cavity and a second cavity that are isolated from each other. The second cavity is in communication with the outside. The condenser is installed in the second cavity. The evaporator has a first surface facing the first cavity. The power device is installed in the first cavity and is in contact with the evaporator;

[0039] The fan is used to drive the gas flow in the second cavity.

[0040] Through the heat transfer between the power device and the radiator and the effective heat dissipation of the radiator, the entire system achieves efficient heat management, ensuring that the power device can operate at an appropriate temperature and improving its working stability and reliability.

[0041] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0042] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0043] Figure 1 is one of the schematic structural diagrams of the electrical device provided by the embodiment of the present application;

[0044] Figure 2It is the second structural schematic diagram of the electrical equipment provided by the embodiments of the present application;

[0045] Figure 3 It is the third structural schematic diagram of the electrical equipment provided by the embodiments of the present application;

[0046] Figure 4 It is the fourth structural schematic diagram of the electrical equipment provided by the embodiments of the present application;

[0047] Figure 5 It is the first structural schematic diagram of the second fin of the evaporator of the radiator provided by the embodiments of the present application;

[0048] Figure 6 It is the second structural schematic diagram of the second fin of the evaporator of the radiator provided by the embodiments of the present application;

[0049] Figure 7 It is the third structural schematic diagram of the second fin of the evaporator of the radiator provided by the embodiments of the present application;

[0050] Figure 8 It is the fourth structural schematic diagram of the second fin of the evaporator of the radiator provided by the embodiments of the present application;

[0051] Figure 9 It is the first structural schematic diagram of the first fin of the evaporator of the radiator provided by the embodiments of the present application;

[0052] Figure 10 It is the second structural schematic diagram of the first fin of the evaporator of the radiator provided by the embodiments of the present application;

[0053] Figure 11 It is the third structural schematic diagram of the first fin of the evaporator of the radiator provided by the embodiments of the present application;

[0054] Figure 12 It is the fourth structural schematic diagram of the first fin of the evaporator of the radiator provided by the embodiments of the present application.

[0055] Reference numerals:

[0056] Electrical equipment 1;

[0057] Radiator 10;

[0058] Condenser 110;

[0059] Evaporator 120, first surface 121, second surface 122;

[0060] Gas pipe 130;

[0061] Liquid pipe 140;

[0062] First fin 151, second fin 152;

[0063] Power device 20;

[0064] Cabinet 30, first chamber 310, second chamber 320;

[0065] Fan 40. Detailed implementation manners

[0066] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0067] The present application aims to solve at least one of the technical problems existing in the related art. For this purpose, the present application provides a radiator and an electrical device, which can improve the normal heat dissipation ability of the radiator and the self-cooling heat dissipation ability of the radiator when the fan is not rotating.

[0068] Reference will be made below Figures 1-12 to describe the radiator 10 according to the embodiments of the present application.

[0069] As Figure 1 and Figure 5 shown, the radiator 10 includes: a condenser 110, an evaporator 120, a gas pipe 130, and a liquid pipe 140.

[0070] The outlet of the evaporator 120 is communicated with the inlet of the condenser 110 through the gas pipe 130.

[0071] In the technical solution of the present application, the gas pipe 130 is respectively connected to the outlet of the evaporator 120 and the inlet of the condenser 110. The refrigerant absorbs heat in the evaporator 120 and evaporates into a gas, and then flows through the gas pipe 130 to the condenser 110 to release heat and condense into a liquid.

[0072] The gas pipe 130 can be made of flexible or rigid materials, such as metal, plastic, or rubber, etc., which can withstand a certain pressure, have a certain heat resistance, and at the same time design a suitable connection method, such as flange connection, threaded connection, or quick connector, etc., and use a sealing material or gasket at the connection to prevent gas leakage and ensure the smooth transmission of gas.

[0073] The diameter and length of the gas pipe 130 can be determined according to the specific dimensions of the evaporator 120 and the condenser 110 and the gas flow rate.

[0074] The inlet of the evaporator 120 is communicated with the outlet of the condenser 110 through the liquid pipe 140.

[0075] In the technical solution of this application, the liquid pipe 140 is respectively connected to the inlet of the evaporator 120 and the outlet of the condenser 110. The refrigerant releases heat in the condenser 110 and condenses into a liquid, and then flows through the liquid pipe 140 to the evaporator 120 to absorb heat and evaporate into a gas.

[0076] The liquid pipe 140 can be made of materials resistant to corrosion, high pressure, high and low temperatures, such as copper, stainless steel, or specific plastic materials. The diameter of the liquid pipe 140 is determined according to the flow rate of the fluid, and the wall thickness is determined according to the pressure-bearing capacity of the liquid pipe 140. The connections between the liquid pipe 140 and the inlet of the evaporator 120 and the outlet of the condenser 110 can be connected by means such as welding, threaded connection, or flange connection. These connection methods can ensure good sealing performance and sufficient strength to prevent liquid leakage. In some cases, the liquid pipe 140 also needs to have a certain degree of flexibility to adapt to the vibration and displacement during system installation and operation.

[0077] The main function of the condenser 110 is to cool the gas and convert it into a liquid, and it is usually used to transfer the heat energy absorbed by the refrigerant in the evaporator 120 to the cooling medium, thereby reducing the system temperature. The cooling medium can be air, and heat dissipation is achieved through the fan 40 installed near the condenser 110.

[0078] In this embodiment, the gas pipe 130 is respectively connected to the outlet of the evaporator 120 and the inlet of the condenser 110, and the liquid pipe 140 is respectively connected to the inlet of the evaporator 120 and the outlet of the condenser 110. The refrigerant absorbs heat in the evaporator 120 and evaporates into a gas, then flows through the gas pipe 130 to the condenser 110 to release heat and condense into a liquid, and finally returns to the evaporator 120 through the liquid pipe 140 to complete a complete refrigeration cycle. This cycle is repeated continuously to ensure the normal operation of the refrigeration system.

[0079] The evaporator 120 includes a first surface 121 and a second surface 122 that are oppositely arranged. The first surface 121 has an installation area for installing the power device 20. Among them, there are various forms of setting the fins on the evaporator 120. The first surface 121 of the evaporator 120 can be provided with first fins 151, the second surface 122 of the evaporator 120 can be provided with second fins 152, or the first surface 121 and the second surface 122 of the evaporator 120 can be respectively provided with first fins 151 and second fins 152.

[0080] In the technical solution of this application, the evaporator 120 includes: a first surface 121 and a second surface 122. The first surface 121 has an installation area for installing the power device 20 and is in contact with the first cavity 310 (i.e., the inner cavity or the electronic cavity), and the second surface 122 that does not install the power device 20 is located in the second cavity 320 (i.e., the outer cavity).

[0081] Such as Figures 1-4As shown, the power device 20 can be a heating device in a power cabinet such as a photovoltaic inverter and an energy storage converter. For example, it can be an IGBT module (Insulated Gate Bipolar Transistor module). The power device 20 is located in the first cavity 310, where the power device 20 is mounted on the first surface 121 of the evaporator 120. The evaporator 120 is arranged at the interface between the first cavity 310 and the second cavity 320. The first surface 121 is in contact with the first cavity 310, and the second surface 122 without the power device 20 is located in the second cavity 320.

[0082] At least one of the first surface 121 and the second surface 122 of the evaporator 120 is provided with a self-cooling heat dissipation structure. For example, the first surface 121 of the evaporator 120 is provided with the first fins 151, the second surface 122 of the evaporator 120 is provided with the second fins 152, or the first surface 121 and the second surface 122 of the evaporator 120 are respectively provided with the first fins 151 and the second fins 152.

[0083] The self-cooling heat dissipation structure can be two different structures of fins. For example, the fins can be integral or separately welded. The integral fins mean that the fins and the mounting surface are of an integral structure, which can be formed by integral forming processes such as rolling or casting, with strong pressure-bearing capacity and good wear resistance. The separately welded fins can adopt welding processes such as laser welding and brazing to directly weld the prefabricated fins on the mounting surface, with a closer and firmer combination.

[0084] The fin installation area avoids the installation positions of the power device 20 and the liquid pipe 140 and the gas pipe 130, which is convenient for processing. The inside of the fins can be made into a cavity or solid. The solid fins simply assist in accelerating heat dissipation, while the hollow fins can be connected to the flow channel of the evaporator 120 and filled with refrigerant inside.

[0085] According to the radiator 10 of the embodiment of the present application, the first surface 121 of the evaporator 120 has an installation area for installing the power device 20, which is in contact with the first chamber 310. The second surface 122 that does not install the power device 20 is located in the second chamber 320. The refrigerant absorbs heat and evaporates in the evaporator 120, thereby cooling the power device 20 in the installation area on the first surface 121 of the evaporator 120. The condenser 110 is arranged in the second chamber 320, and a fan 40 is used for heat dissipation, so that the refrigerant releases heat and condenses into a liquid in the condenser 110 to complete a complete refrigeration cycle and ensure the normal operation of the refrigeration system. The power device 20 mainly exchanges heat through the evaporator 120. A fan 40 is also provided in the first chamber 310, which can accelerate the air flow around the power device 20 and also enhance the heat exchange effect of the evaporator 120. At the same time, at least one of the first surface 121 and the second surface 122 of the evaporator 120 is provided with a self-cooling heat dissipation structure, such as being made into a cavity body or solid fins or teeth inside, which can improve the normal heat dissipation ability of the radiator 10 and the self-cooling heat dissipation ability of the radiator 10 when the fan 40 is not rotating, thereby avoiding the power device 20 from exploding due to excessive temperature before shutdown and solving the problem of excessive heat flux density of the power device 20, and further improving the power density of the power cabinet.

[0086] In some embodiments, when the second fins 152 are provided on the second surface 122, the second fins 152 are at least provided at positions corresponding to the installation area.

[0087] In the technical solution of the present application, the second fins 152 are provided on the second surface 122 of the evaporator 120. The density, shape and size of the second fins 152 are not limited. The inside of the second fins 152 can be a cavity body or solid. The solid fins assist in accelerating heat dissipation, and the hollow fins are connected to the flow channels of the evaporator 120, and the inside is filled with refrigerant.

[0088] The solid fins enhance the heat dissipation effect by increasing the heat dissipation surface area. The fins are connected to the second surface 122. When the power device 20 dissipates heat, the heat is transferred to the second surface 122 and diffused into the air through the fins.

[0089] The cavity body inside the hollow fins can be regarded as a heat exchange surface, similar to the pipes in the condenser 110. When the refrigerant flows in the flow channels of the evaporator 120, it will exchange heat with the internal cavity body of the fins, causing the temperature of the refrigerant to change, thereby realizing the transfer of energy.

[0090] It can be understood that by providing the second fins 152 at least at positions corresponding to the installation area on the second surface 122, the power device 20 in the installation area on the first surface 121 can be effectively cooled, preventing local overheating of the power device 20.

[0091] The inlet and outlet of the evaporator 120 can have various layout modes, including but not limited to:

[0092] Example 1: The inlet and outlet of the evaporator 120 are arranged on different surfaces.

[0093] The inlet of the evaporator 120 is connected to the outlet of the condenser 110 through the liquid pipe 140, and the outlet of the evaporator 120 is connected to the inlet of the condenser 110 through the gas pipe 130. The refrigerant absorbs heat in the evaporator 120 and evaporates into a gas, then flows through the gas pipe 130 to the condenser 110 to release heat and condense into a liquid, and finally returns to the evaporator 120 through the liquid pipe 140 to complete a complete refrigeration cycle. This cycle repeats continuously to ensure the normal operation of the refrigeration system.

[0094] The inlet and outlet of the evaporator 120 are arranged on different surfaces, with the inlet at the bottom and the outlet at the top. The outlet of the evaporator 120 can be arranged on other surfaces except the third side 120c, such as the first side 120a, the second side 120b, the fourth side 120d or the second surface 122. The inlet of the evaporator 120 can be arranged on other surfaces except the first side 120a, such as the second side 120b, the third side 120c, the fourth side 120d or the second surface 122.

[0095] It can be understood that arranging the inlet and outlet of the evaporator 120 on different surfaces of the evaporator 120 can better control the fluid distribution, help ensure more uniform fluid flow inside the evaporator, thereby improving the heat exchange efficiency. At the same time, it can reduce the pressure drop inside the evaporator, help reduce the energy required for fluid transportation, and improve the efficiency of the entire system.

[0096] Example 2: The inlet and outlet of the evaporator 120 are arranged on the same surface.

[0097] The inlet of the evaporator 120 is connected to the outlet of the condenser 110 through the liquid pipe 140, and the outlet of the evaporator 120 is connected to the inlet of the condenser 110 through the gas pipe 130. The refrigerant absorbs heat in the evaporator 120 and evaporates into a gas, then flows through the gas pipe 130 to the condenser 110 to release heat and condense into a liquid, and finally returns to the evaporator 120 through the liquid pipe 140 to complete a complete refrigeration cycle. This cycle repeats continuously to ensure the normal operation of the refrigeration system.

[0098] The inlet and outlet of the evaporator 120 can be arranged on the same side, such as the first side 120a, the second side 120b, the third side 120c, the fourth side 120d or the second surface 122 of the evaporator 120. The inlet is at the bottom and the outlet is at the top. Taking the second surface 122 as an example, arranging the inlet and outlet of the evaporator 120 on the same surface of the evaporator 120 can reduce the use of pipes and connectors, make more effective use of space, and reduce the floor area of the evaporator 120 in the system.

[0099] In some embodiments, such as Figures 5-8 shown, the second fin 152 is spaced apart from the outlet and the inlet of the evaporator 120.

[0100] The liquid refrigerant transmitted in the liquid pipe 140 enters the evaporator 120 through the inlet of the evaporator 120, absorbs heat and evaporates into gaseous refrigerant, and then enters the gas pipe 130 through the outlet of the evaporator 120. The fluid flows uniformly on the entire plate, without heat exchange dead zones, so as to obtain a good evaporation effect.

[0101] The second fin 152 is kept at a certain interval from the inlet and outlet of the evaporator 120, which can prevent the refrigerant in the evaporator 120 from directly contacting the outer surface of the second fin 152, thereby preventing unnecessary condensation or evaporation of the refrigerant on the second fin 152, and contributing to maintaining the heat dissipation efficiency of the evaporator 120. The second fin 152 is kept at a distance from the gas pipe 130 and the liquid pipe 140, which can prevent the second fin 152 from contacting the pipes under the action of vibration or thermal stress, thereby preventing pipe rupture or leakage, and contributing to the maintenance and cleaning of the system.

[0102] It can be understood that keeping a certain interval between the second fin 152 and the inlet and outlet of the evaporator 120 can ensure the efficient and safe operation of the heat dissipation system, and facilitate the maintenance and cleaning of the system.

[0103] The second fin 152 can be provided on the second surface 122 of the evaporator 120. The second fin 152 has various structural forms, including but not limited to:

[0104] In some embodiments, the height of the second fin 152 in the third direction is lower than the height of the gas pipe 130 and the liquid pipe 140 to the second surface 122.

[0105] Such as Figure 5 and Figure 6 shown, there are multiple second fins 152, and the multiple second fins 152 are spaced apart and distributed.

[0106] In this embodiment, the length direction of the evaporator 120 is set as the first direction, the width direction is set as the second direction, and the thickness direction is set as the third direction. The first direction, the second direction, and the third direction intersect pairwise, including being perpendicular to each other. A plurality of second fins 152 are installed on the evaporator 120, which can increase the heat dissipation area of the evaporator 120, and heat can be dissipated into the surrounding environment more quickly, thereby improving the heat exchange efficiency of the evaporator 120.

[0107] Multiple groups of second fins 152 spaced apart along the first direction can ensure the uniform distribution of heat over the entire evaporator 120, helping to prevent local overheating or overcooling of the evaporator 120 and ensuring the uniform flow and evaporation of the refrigerant within the evaporator 120.

[0108] The inlet of the evaporator 120 is located at one end of the evaporator 120 facing away from the condenser 110, which can enable the refrigerant entering the evaporator 120 to gradually contact the heat exchange surface within the evaporator 120 during the flow process, thereby achieving more uniform and sufficient heat exchange, helping to reduce the pressure loss of the refrigerant during the flow process, and improving the heat exchange efficiency of the system.

[0109] It can be understood that the inlet of the evaporator 120 being located at one end of the evaporator 120 facing away from the condenser 110 can improve the heat exchange efficiency of the system. At the same time, multiple second fins 152 are spaced apart, which can make the structure of the entire evaporator 120 more compact and help improve the space utilization rate.

[0110] In some other embodiments, the height of the second fins 152 in the third direction is greater than or equal to the height from the gas pipe 130 and the liquid pipe 140 to the second surface 122.

[0111] In this embodiment, as Figure 7 and Figure 8 shown, multiple second fins 152 are divided into multiple groups, and the outlet of the evaporator 120 is located between adjacent groups of second fins 152, the inlet of the evaporator 120 is located between adjacent groups of second fins 152, or the inlet and outlet of the evaporator 120 are located between adjacent groups of second fins 152.

[0112] There are various layout ways between the second fins 152 and the inlets and outlets on the evaporator 120. For example, the outlet of the evaporator 120 can be located between adjacent groups of second fins 152, the inlet of the evaporator 120 can be located between adjacent groups of second fins 152, or both the inlet and outlet of the evaporator 120 are located between adjacent groups of second fins 152. This can increase the heat dissipation area and avoid interference between the second fins 152 and the inlets and outlets, ensuring that the refrigerant can flow smoothly without being affected by the second fins 152.

[0113] It can be understood that by reasonably arranging the second fins 152, the heat dissipation area of the evaporator 120 can be increased, while ensuring that the refrigerant forms a stable flow state within the evaporator 120, reducing eddies and dead zones, improving the heat exchange efficiency, and enhancing the structural stability of the evaporator 120.

[0114] In this embodiment, as Figure 7 and Figure 8 shown, when both the outlet and the inlet of the evaporator 120 are provided on the second surface 122, the projections of the gas pipe 130, the liquid pipe 140, and the second fins 152 on the second surface 122 are arranged staggered along the first direction.

[0115] Both the outlet and the inlet of the evaporator 120 are provided on the second surface 122. A plurality of second fins 152 are installed on the second surface 122 of the evaporator 120, and the projections of the gas pipe 130, the liquid pipe 140, and the second fins 152 on the second surface 122 are arranged staggered along the first direction, which can increase the heat dissipation area of the evaporator 120, enabling the refrigerant to more effectively exchange heat with the second fins 152 when flowing within the evaporator 120, and the heat can be evenly and efficiently dissipated into the surrounding environment, thereby improving the heat exchange efficiency of the evaporator 120.

[0116] It can be understood that by arranging the projections of the gas pipe 130, the liquid pipe 140, and the second fins 152 on the second surface 122 staggered along the first direction, the space can be reasonably utilized, the overall structural stability of the evaporator 120 can be enhanced, making the evaporator 120 more stable and reliable during operation, reducing the risk of damage caused by vibration or impact, while reducing the flow resistance of the refrigerant within the evaporator 120, contributing to the uniform distribution and flow of the refrigerant within the evaporator 120, and further enhancing the heat exchange efficiency.

[0117] In this embodiment, as Figure 7 and Figure 8 shown, the second fins 152 extend from one end to the other end in the width direction of the evaporator 120.

[0118] The height of the second fins 152 is higher than the height of the gas pipe 130 and the liquid pipe 140 to the second surface 122, enabling a larger heat dissipation area, thereby improving the heat dissipation efficiency of the evaporator 120 and ensuring the stable operation of the system. At the same time, the relatively high second fins 152 can also provide more support points for the evaporator 120, enhancing the structural stability of the evaporator 120, reducing the risk of damage caused by vibration or impact, and extending the service life of the evaporator 120.

[0119] The second fin 152 extends from one end to the other end in the width direction of the evaporator 120, which can guide the air flow, achieve a more uniform air flow distribution, help reduce the local overheating phenomenon on the surface of the evaporator 120, improve the overall heat dissipation performance. At the same time, the second fin 152 covering the entire width of the evaporator 120 can more easily capture dust and impurities in the air, and can more easily remove the dirt on the second fin 152 during cleaning and maintenance, maintaining the heat dissipation performance of the evaporator 120.

[0120] It can be understood that through the design of the second fin 152 extending from one end to the other end in the width direction of the evaporator 120, the heat dissipation effect and air flow distribution can be optimized, the energy efficiency ratio of the evaporator 120 can be improved, and thus the heat dissipation efficiency of the system can be improved.

[0121] In this embodiment, as Figures 9-12 shown, when the first fin 151 is provided on the first surface 121, the first fin 151 is spaced apart from the installation area.

[0122] In the technical solution of the present application, the first fin 151 is provided on the first surface 121 of the evaporator 120. The density, shape and size of the first fin 151 are not limited, and it is spaced apart from the installation area of the evaporator 120. The inside of the first fin 151 can be a cavity or solid. The solid fin helps to accelerate heat dissipation, and the hollow fin is connected to the flow channel of the evaporator 120, and the inside is filled with refrigerant.

[0123] The solid fin enhances the heat dissipation effect by increasing the heat dissipation surface area. The fin is connected to the first surface 121. When the power device 20 dissipates heat, the heat is transferred to the first surface 121 and diffused into the air through the fin.

[0124] The cavity inside the hollow fin can be regarded as a heat exchange surface, similar to the pipeline in the condenser 110. When the refrigerant flows in the flow channel of the evaporator 120, it will exchange heat with the internal cavity of the fin, causing the temperature of the refrigerant to decrease or increase, thereby realizing the transfer of energy.

[0125] Spacing the first fin 151 on the first surface 121 from the installation area can avoid collision or interference with the first fin 151 during the installation, repair or disassembly of the evaporator 120, ensure that the first fin 151 will not be damaged during the installation or maintenance process, and at the same time improve the convenience and safety of the operation.

[0126] It can be understood that the first fin 151 is spaced from the installation area, but is still part of the overall structure of the evaporator 120, which can provide a certain support for the evaporator 120, enhance the stability of the overall structure. At the same time, the gap between the first fin 151 and the installation area can ensure the free flow of air around the evaporator 120, reduce the flow resistance, and improve the heat exchange efficiency.

[0127] The first fin 151 can be provided on the first surface 121 of the evaporator 120. The first fin 151 has various structural forms, including but not limited to:

[0128] In some embodiments, the first fins 151 are arranged at both ends of the first surface 121 along the first direction.

[0129] In this embodiment, as Figure 9 and Figure 10 shown, there are multiple first fins 151. The multiple first fins 151 are spaced apart along the first direction, and the first fins 151 are arranged at both ends of the first surface 121 along the first direction. The installation area is located between the first fins 151 at both ends.

[0130] Installing multiple first fins 151 on the first surface 121 of the evaporator 120 can increase the heat dissipation area of the evaporator 120, thereby improving the heat exchange efficiency of the evaporator 120. The multiple first fins 151 are spaced apart along the first direction, which can ensure the uniform distribution of heat throughout the evaporator 120, help prevent local overheating of the evaporator 120, and ensure the uniform flow and evaporation of the refrigerant within the evaporator 120.

[0131] The first fins 151 are arranged at both ends of the first surface 121 along the first direction, which can effectively increase the heat dissipation area, thereby enhancing the heat dissipation performance of the evaporator 120, helping to quickly dissipate the heat inside the evaporator 120 to the surrounding environment, and maintaining the efficient operation of the evaporator 120.

[0132] The installation area is located between the first fins 151 at both ends, which can reduce heat accumulation, help the installation area maintain a relatively low temperature, reduce the risk of damage to the installed components due to overheating, and also facilitate the installation and maintenance of the evaporator 120, making it convenient for operations such as installation, disassembly, inspection, and repair.

[0133] The first fin 151 can also provide a certain structural support for the evaporator 120, and the installation area being located between the first fins 151 at both ends can further enhance the overall structural stability of the evaporator 120, helping to reduce the risk of damage or failure of the evaporator 120 caused by vibration or external forces.

[0134] It can be understood that a plurality of first fins 151 are arranged at both ends of the first surface 121 of the evaporator 120 at intervals in the first direction, and the installation area is located between the first fins 151 at both ends, which can improve the heat dissipation performance of the evaporator 120, prevent local overheating of the evaporator 120, protect the installation area, and improve the structural stability.

[0135] In some embodiments, the first fins 151 are arranged at at least one end of the first surface 121 in the second direction.

[0136] In this embodiment, as Figure 11 and Figure 12 shown, there are a plurality of first fins 151, and the plurality of first fins 151 are distributed at intervals in the first direction, and the first fins 151 are arranged at at least one end of the first surface 121 in the second direction.

[0137] A plurality of first fins 151 are installed on the first surface 121 of the evaporator 120, which can increase the heat dissipation area of the evaporator 120, thereby improving the heat exchange efficiency of the evaporator 120. The plurality of first fins 151 are distributed at intervals in the first direction, which can ensure the uniform distribution of heat on the evaporator 120, help prevent local overheating of the evaporator 120, and ensure the uniform flow and evaporation of the refrigerant in the evaporator 120.

[0138] The first fins 151 are arranged at at least one end of the first surface 121 in the second direction, which can make full use of the space in the second direction, ensure that the first fins 151 have enough area to exchange heat with the air or fluid flowing through the evaporator 120, thereby improving the heat dissipation efficiency of the evaporator 120. At the same time, it helps to reduce the flow resistance, strengthen the heat exchange with the first fins 151, thereby further improving the heat dissipation performance of the evaporator 120, and is convenient for maintenance and cleaning.

[0139] It can be understood that arranging the first fins 151 at at least one end of the first surface 121 in the second direction can make full use of the space of the evaporator 120, optimize the fluid flow path, and facilitate maintenance and cleaning, which helps to improve the heat dissipation performance and service efficiency of the evaporator 120.

[0140] The following will specifically describe the embodiments of the present application from four different implementation perspectives.

[0141] Example 1, the second fins 152 are arranged on the second surface 122 of the evaporator 120, and the height is lower than the height of the gas pipe 130 and the liquid pipe 140 to the second surface 122

[0142] In this embodiment, the radiator 10 includes: a condenser 110, an evaporator 120, a gas pipe 130, and a liquid pipe 140.

[0143] The condenser 110 and the evaporator 120 are arranged up and down, the evaporator 120 is arranged vertically, and the condenser 110 is arranged slightly inclined. The gas pipe 130 is connected to the outlet of the evaporator 120 and the inlet of the condenser 110 respectively, and the liquid pipe 140 is connected to the inlet of the evaporator 120 and the outlet of the condenser 110 respectively, forming a refrigerant circulation loop as a whole.

[0144] The evaporator 120 includes a first surface 121 and a second surface 122 . The first surface 121 has a mounting area for mounting the power device 20 and contacts the first cavity 310 . The second surface 122 , where no power device 20 is mounted, is located in the second cavity 320 .

[0145] The refrigerant absorbs heat and evaporates in the evaporator 120, thereby cooling the power device 20 located in the mounting area on the first surface 121. The condenser 110 is arranged in the second cavity 320, and the fan 40 is used for heat dissipation, so that the refrigerant releases heat and condenses into liquid in the condenser 110 to complete the complete refrigeration cycle and ensure the normal operation of the refrigeration system.

[0146] The second surface 122 of the evaporator 120 may be provided with a second fin 152 . The second fin 152 may have various structural forms, including but not limited to:

[0147] The second fin 152 is spaced apart from the outlet of the evaporator 120 and the inlet of the evaporator 120 , and is spaced apart from the gas pipe 130 and the liquid pipe 140 .

[0148] The inlet of the evaporator 120 is located at one end of the evaporator 120 away from the condenser 110 , and the second fin 152 is arranged between the evaporator 120 and the liquid pipe 140 in the third direction.

[0149] There are a plurality of second fins 152 , and the plurality of second fins 152 are spaced apart and distributed along the first direction.

[0150] The second fin 152 is located between the outlet of the evaporator 120 and the inlet of the evaporator 120 in the second direction.

[0151] In the technical solution of the present application, a second fin 152 is provided on the second surface 122 of the evaporator 120. The density, shape and size of the second fin 152 are not restricted, and the air pipe 130 and the liquid pipe 140 on the second surface 122 are avoided. The interior of the second fin 152 can be a hollow cavity or solid. The solid fin helps to accelerate heat dissipation, and the hollow fin is connected to the flow channel of the evaporator 120 and is filled with refrigerant.

[0152] The inlet of the evaporator 120 is located at one end of the evaporator 120 facing away from the condenser 110, which can enable the refrigerant entering the evaporator 120 to gradually contact the heat exchange surface inside the evaporator 120 during the flow process, thereby achieving more uniform and sufficient heat exchange, helping to reduce the pressure loss of the refrigerant during the flow process, and improving the heat exchange efficiency of the system.

[0153] Arranging the second fins 152 between the evaporator 120 and the liquid pipe 140 in the third direction can ensure that the space between the evaporator 120 and the liquid pipe 140 is fully utilized, making the structure of the entire evaporator 120 more compact, helping to improve the space utilization rate, and at the same time avoiding interference between the second fins 152 and the liquid pipe 140, ensuring that the refrigerant in the liquid pipe 140 can flow smoothly without being affected by the second fins 152.

[0154] A plurality of second fins 152 spaced apart along the first direction can increase the heat dissipation area, improve the heat dissipation efficiency, and at the same time ensure the uniform distribution of heat on the evaporator 120, helping to prevent local overheating of the evaporator 120, ensuring that the refrigerant can flow and evaporate uniformly inside the evaporator 120. At the same time, the second fins 152 are located between the outlet and the inlet of the evaporator 120 in the second direction, which is convenient for installation and maintenance.

[0155] It can be understood that by reasonably arranging the second fins 152 on the second surface 122 of the evaporator 120, the normal heat dissipation capacity of the radiator 10 and the self-cooling heat dissipation capacity of the radiator 10 when the fan 40 is not rotating can be improved, thereby avoiding the power device 20 from blowing up due to excessive temperature before shutdown and solving the problem of excessive heat flux density of the power device 20, and further improving the power density of the power cabinet.

[0156] In the second example, the second fins 152 are arranged on the second surface 122 of the evaporator 120, and the height is greater than or equal to the height from the gas pipe 130 and the liquid pipe 140 to the second surface 122

[0157] In this embodiment, the radiator 10 includes: a condenser 110, an evaporator 120, a gas pipe 130, and a liquid pipe 140.

[0158] The condenser 110 and the evaporator 120 are arranged vertically and horizontally. The evaporator 120 is arranged vertically, and the condenser 110 is arranged slightly inclined. There are pipeline connections between them. The gas pipe 130 is respectively connected to the outlet of the evaporator 120 and the inlet of the condenser 110, and the liquid pipe 140 is respectively connected to the inlet of the evaporator 120 and the outlet of the condenser 110, forming a refrigerant circulation loop as a whole.

[0159] The evaporator 120 includes: a first surface 121 and a second surface 122. The first surface 121 has an installation area for installing the power device 20, is in contact with the first cavity 310, and the second surface 122 where the power device 20 is not installed is located in the second cavity 320.

[0160] The refrigerant absorbs heat and evaporates in the evaporator 120, thereby cooling the power device 20 in the installation area on the first surface 121. The condenser 110 is arranged in the second cavity 320, and a fan 40 is used for heat dissipation, so that the refrigerant releases heat and condenses into a liquid in the condenser 110 to complete a complete refrigeration cycle and ensure the normal operation of the refrigeration system.

[0161] A second fin 152 may be provided on the second surface 122 of the evaporator 120. The second fin 152 has various structural forms, including but not limited to:

[0162] The second fin 152 is spaced apart from the outlet and the inlet of the evaporator 120, and is also spaced apart from the gas pipe 130 and the liquid pipe 140.

[0163] There are multiple second fins 152. The projections of the gas pipe 130, the liquid pipe 140, and the second fins 152 on the second surface 122 are arranged staggered along the first direction.

[0164] The height of the second fin 152 is higher than the height of the gas pipe 130 and the liquid pipe 140 to the second surface 122.

[0165] The fin extends from one end in the second direction to the other end.

[0166] In the technical solution of the present application, a second fin 152 is provided on the second surface 122 of the evaporator 120. The density, shape, and size of the second fin 152 are not limited. Avoiding the gas pipe 130 and the liquid pipe 140 on the second surface 122, the inside of the second fin 152 can be a cavity or solid. The solid fin helps to accelerate heat dissipation, and the hollow fin is connected to the flow channel of the evaporator 120 and is filled with refrigerant inside.

[0167] Installing multiple second fins 152 on the evaporator 120 can increase the heat dissipation area of the evaporator 120 and improve the heat exchange efficiency of the evaporator 120. The projections of the gas pipe 130, the liquid pipe 140, and the second fins 152 on the second surface 122 are arranged staggered along the first direction, which can rationally utilize space, and at the same time enhance the overall structural stability of the evaporator 120 and reduce the risk of damage caused by vibration or impact.

[0168] The height of the second fin 152 is higher than the height of the gas pipe 130 and the liquid pipe 140 to the second surface 122, and the fin extends from one end in the second direction to the other end, which can optimize the heat dissipation effect and air flow distribution, improve the energy efficiency ratio of the evaporator 120, and thus improve the heat dissipation efficiency of the system.

[0169] It can be understood that by reasonably arranging the second fins 152 on the second surface 122 of the evaporator 120, the normal heat dissipation capacity of the radiator 10 and the self-cooling heat dissipation capacity of the radiator 10 when the fan 40 is not rotating are improved, thereby avoiding the explosion of the power device 20 due to excessive temperature before shutdown and solving the problem of excessive heat flux density of the power device 20, and further improving the power density of the power cabinet.

[0170] Example 3: The first fins 151 are arranged at both ends in the length direction of the first surface 121 of the evaporator 120

[0171] In this embodiment, the radiator 10 includes: a condenser 110, an evaporator 120, a gas pipe 130, and a liquid pipe 140.

[0172] The condenser 110 and the evaporator 120 are arranged vertically, the evaporator 120 is arranged vertically, the condenser 110 is arranged slightly inclined, and there are pipeline connections between them. The gas pipe 130 is respectively connected to the outlet of the evaporator 120 and the inlet of the condenser 110, and the liquid pipe 140 is respectively connected to the inlet of the evaporator 120 and the outlet of the condenser 110, forming a complete refrigerant circulation loop as a whole.

[0173] The evaporator 120 includes: a first surface 121 and a second surface 122. The first surface 121 has an installation area for installing the power device 20, is in contact with the first cavity 310, and the second surface 122 without installing the power device 20 is located in the second cavity 320.

[0174] The refrigerant absorbs heat and evaporates in the evaporator 120, thereby cooling the power device 20 in the installation area on the first surface 121. The condenser 110 is arranged in the second cavity 320 and is cooled by the fan 40, so that the refrigerant releases heat and condenses into a liquid in the condenser 110 to complete a complete refrigeration cycle and ensure the normal operation of the refrigeration system.

[0175] The first surface 121 of the evaporator 120 may be provided with first fins 151. The first fins 151 have various structural forms, including but not limited to:

[0176] The first surface 121 is provided with first fins 151, and the first fins 151 are spaced apart from the installation area.

[0177] There are multiple first fins 151, and the multiple first fins 151 are spaced apart and distributed along the first direction, and the first fins 151 are arranged at both ends of the first surface 121 along the first direction, and the installation area is located between the first fins 151 at both ends.

[0178] In the technical solution of the present application, a first fin 151 is provided on the first surface 121 of the evaporator 120. The density, shape, and size of the first fin 151 are not limited. It is spaced apart from the installation area of the evaporator 120. The inside of the fin can be a cavity or solid. The solid fin assists in accelerating heat dissipation, and the hollow fin is connected to the flow channel of the evaporator 120 and filled with refrigerant inside.

[0179] Spacing the first fin 151 on the first surface 121 from the installation area can prevent collision or interference with the fin during installation or maintenance, which may damage the fin. At the same time, the interval between the first fin 151 and the installation area can ensure that air flows freely around the evaporator 120 and the first fin 151, reducing the flow resistance and improving the heat dissipation efficiency.

[0180] The first fin 151 is arranged at both ends of the first surface 121 along the first direction, which can effectively increase the heat dissipation area, thereby enhancing the heat dissipation performance of the evaporator 120, helping to quickly dissipate the heat inside the evaporator 120 to the surrounding environment, and maintaining the efficient operation of the evaporator 120.

[0181] The installation area is located between the first fins 151 at both ends, which can reduce heat accumulation, help the installation area maintain a relatively low temperature, reduce the risk of damage to the installed components due to overheating, and at the same time facilitate the installation and maintenance of the evaporator 120. The first fin 151 can also provide certain structural support for the evaporator 120, enhancing the overall structural stability of the evaporator 120, and helping to reduce the risk of damage or failure of the evaporator 120 caused by vibration or external forces.

[0182] It can be understood that by reasonably arranging the first fin 151 on the first surface 121 of the evaporator 120, the normal heat dissipation capacity of the radiator 10 and the self-cooling heat dissipation capacity of the radiator 10 when the fan 40 is not rotating are improved, thereby avoiding the explosion of the power device 20 due to excessive temperature before shutdown and solving the problem of excessive heat flux density of the power device 20, and further improving the power density of the power cabinet.

[0183] Example 4: The first fin 151 is arranged along the second direction at at least one end of the first surface 121 of the evaporator 120

[0184] In this embodiment, the radiator 10 includes: a condenser 110, an evaporator 120, a gas pipe 130, and a liquid pipe 140.

[0185] The condenser 110 and the evaporator 120 are arranged vertically one above the other. The evaporator 120 is arranged vertically, and the condenser 110 is arranged slightly inclined. There are pipeline connections between them. The gas pipe 130 is connected to the outlet of the evaporator 120 and the inlet of the condenser 110 respectively, and the liquid pipe 140 is connected to the inlet of the evaporator 120 and the outlet of the condenser 110 respectively, forming a refrigerant circulation loop as a whole.

[0186] The evaporator 120 includes: a first surface 121 and a second surface 122. The first surface 121 has an installation area for installing the power device 20 and is in contact with the first cavity 310. The second surface 122 where the power device 20 is not installed is located in the second cavity 320.

[0187] The refrigerant absorbs heat and evaporates in the evaporator 120, thereby cooling the power device 20 in the installation area on the first surface 121. The condenser 110 is arranged in the second cavity 320 and is cooled by a fan 40, enabling the refrigerant to release heat and condense into a liquid in the condenser 110 to complete a complete refrigeration cycle and ensure the normal operation of the refrigeration system.

[0188] The first surface 121 of the evaporator 120 may be provided with first fins 151. The first fins 151 have various structural forms, including but not limited to:

[0189] The first surface 121 is provided with first fins 151, and the first fins 151 are spaced apart from the installation area.

[0190] There are multiple first fins 151, and the multiple first fins 151 are spaced apart along a first direction and are arranged at at least one end of the first surface 121 along a second direction.

[0191] In the technical solution of the present application, the first surface 121 of the evaporator 120 is provided with first fins 151. The density, shape, and size of the first fins 151 are not limited. They are spaced apart from the installation area of the evaporator 120. The inside of the fins can be a cavity or solid. The solid fins assist in accelerating heat dissipation, and the hollow fins are connected to the flow channel of the evaporator 120 and are filled with refrigerant inside.

[0192] Spacing the multiple first fins 151 apart along the first direction can ensure the uniform distribution of heat on the evaporator 120, help prevent local overheating of the evaporator 120, ensure the uniform flow and evaporation of the refrigerant in the evaporator 120. At the same time, the interval between the first fins 151 and the installation area can ensure the free flow of air around the evaporator 120 and the first fins 151, reduce the flow resistance, and improve the heat dissipation efficiency.

[0193] The first fin 151 is arranged at at least one end of the first surface 121 along the second direction, which can make full use of the space in the second direction, ensure that the first fin 151 has sufficient area to exchange heat with the air or fluid flowing through the evaporator 120, thereby improving the heat dissipation efficiency of the evaporator 120. At the same time, it helps to reduce the flow resistance, strengthen the heat exchange with the first fin 151, further enhance the heat dissipation performance of the evaporator 120, and is convenient for maintenance and cleaning.

[0194] It can be understood that by reasonably arranging the first fin 151 on the first surface 121 of the evaporator 120, the space can be fully utilized, the heat dissipation area can be increased, the fluid flow path can be optimized, the normal heat dissipation capacity of the radiator 10 and the self-cooling heat dissipation capacity of the radiator 10 when the fan 40 is not rotating can be improved, thereby avoiding the explosion of the power device 20 due to excessive temperature before shutdown and solving the problem of excessive heat flux density of the power device 20, and further enhancing the power density of the power cabinet.

[0195] The embodiment of the present application also provides an electrical device 1, such as Figures 1-4 shown, the electrical device 1 includes: a power device 20.

[0196] According to the electrical device 1 provided by the embodiment of the present application, the power device 20 can be a heating device in a photovoltaic inverter power cabinet, such as an IGBT module. By adopting a new phase change heat dissipation method, efficient cooling of the power device 20 can be achieved, and the heat dissipation bottleneck problem of the traditional phase change heat dissipation method during high-load operation can be solved, providing a strong guarantee for the stable operation of the electrical device 1.

[0197] In some embodiments, such as Figures 1-4 shown, the power device 20 is installed on the evaporator 120.

[0198] In the technical solution of the present application, the evaporator 120 can be designed to be in direct contact or indirect contact with the power device 20. The heat generated by the power device 20 can be transferred to the evaporator 120 through direct contact or a heat conduction medium, and then the evaporator 120 transfers the heat. When in direct contact, the power device 20 and the evaporator 120 are closely connected, and when in indirect contact, heat exchange is carried out between the power device 20 and the evaporator 120 through a heat conduction medium.

[0199] During the actual working process, the power device 20 generates a large amount of heat when working. The new phase change heat dissipation is an effective heat dissipation measure to ensure its stable operation. Arranging fins on at least one of the first surface 121 and the second surface 122 of the evaporator 120 can make full use of the space, increase the heat dissipation area, and optimize the fluid flow path, which can not only improve the normal heat dissipation capacity of the evaporator 120, but also improve the self-cooling heat dissipation capacity of the evaporator 120 when the fan 40 is not rotating.

[0200] It can be understood that by absorbing the heat generated by the power device 20 through the evaporator 120 and transferring it to other media, the temperature of the power device 20 can be effectively reduced, which helps to ensure the stable operation of the power device 20 and prevent performance degradation or damage caused by overheating.

[0201] In some embodiments, such as Figures 1-4 shown, the electrical device 1 may further include: a box body 30 and a fan 40.

[0202] The box body 30 forms a first cavity 310 and a second cavity 320 that are isolated from each other. The second cavity 320 communicates with the outside. The condenser 110 is installed in the second cavity 320. The evaporator has a first surface 121 facing the first cavity 310. The power device 20 is installed in the first cavity 310 and exchanges heat with the first surface 121.

[0203] The fan 40 is used to drive the gas flow in the second cavity 320.

[0204] The box body 30 can be used to accommodate and separate different components, isolate the first cavity 310 and the second cavity 320 from each other, and ensure that heat and gas between the two do not exchange randomly. A suitable material can be used to manufacture the box body 30 to ensure the isolation effect between the first cavity 310 and the second cavity 320, such as a metal material.

[0205] The first cavity 310 and the second cavity 320 are respectively used to accommodate different components and achieve different functions. The first cavity 310 is mainly used to install the power device 20, while the second cavity 320 is used to install the radiator 10 and the fan 40 and communicates with the outside. The first surface 121 of the evaporator 120 faces the first cavity 310, that is, faces the power device 20, so as to ensure that the evaporator 120 can directly and effectively absorb the heat generated by the power device 20.

[0206] The second cavity 320 can also install a photovoltaic reactor to achieve stable regulation of the voltage and current of the power grid by compensating the reactive power of the photovoltaic power generation system, and avoid affecting the power generation power and thus the grid stability due to changes in light intensity.

[0207] During the actual working process, the power device 20 generates a large amount of heat when working. Since the box body 30 isolates the first cavity 310 and the second cavity 320 from each other, the heat cannot be directly transferred from the first cavity 310 to the second cavity 320. However, the first surface 121 of the evaporator 120 faces the first cavity 310, and it can absorb heat from the power device 20 through heat conduction or convection. With the transfer of heat and the operation of the radiator 10, pressure and temperature changes will occur inside the first cavity 310.

[0208] When the heat dissipation of the first cavity 310 of the traditional power cabinet is large, heat dissipation forms such as microchannel air-air heat exchangers, air-air aluminum foil heat exchangers, and double-sided fin heat exchangers are generally used to meet the heat dissipation requirements of the heat sources inside the first cavity 310.

[0209] In the technical solution of the present application, the first fin 151 is provided on the first surface 121 of the evaporator 120, which can not only solve the problem of the power device 20 being damaged due to a rapid temperature increase when the fan 40 suddenly stops rotating, but also dissipate heat from other heat sources in the first cavity 310, such as capacitors, copper bars, and PCB boards, achieving a dual heat dissipation effect. At the same time, the heat exchanger inside the first cavity 310 can be omitted or made smaller, saving space.

[0210] As Figure 1 shown, the fan 40 inside the second cavity 320 is used to drive the gas flow in the second cavity 320 to dissipate heat from the condenser 110. By adding the first fin 151 and the second fin 152 on the first surface 121 and the second surface 122 of the evaporator 120 respectively, the self-cooling heat dissipation efficiency of the radiator 10 and the ability to solve a larger heat flux density under normal operating conditions can be further improved. Among them, the air duct of the second cavity 320 can be air intake from the middle on the left side and air outlet on the right side, at the top, or at the bottom, or a random combination of the three, that is Figure 1 the air duct trajectory of A in, or it can be air intake on the right side and air outlet on the left side or at the bottom, or a combination of the two, that is Figure 1 the air duct trajectory of B in.

[0211] As Figure 2 shown, the air duct of the first cavity 310 is determined according to the form of the first fin 151, the heat source, and the layout of the fan 40. The fan 40 inside the first cavity 310 is used to accelerate the air flow around the power device 20 and the first fin 151. The air duct flow direction starts from the fan 40, passes through the heat source, reaches the first fin 151, and then passes through the fan 40 to form a cycle, that is Figure 2 the air duct trajectory of C in. When the fan 40 is working normally, the first fin 151 can improve the heat dissipation effect of the power device 20, thereby further improving the power rating of the power cabinet. When the fan 40 inside the first cavity 310 or the fan 40 inside the second cavity 320 is damaged, the first fin 151 can also effectively prevent the power device 20 from being damaged due to a rapid temperature increase.

[0212] As Figure 3 shown, the fan 40 inside the second cavity 320 is used to dissipate heat from the condenser 110. By adding the second fin 152 on the second surface 122 of the evaporator 120, the self-cooling heat dissipation efficiency of the radiator 10 and the ability to solve a larger heat flux density under normal operating conditions can be further improved. The air duct of the second cavity 320 can be air intake on the left side and air outlet at the top and on the right side, that is Figure 3The air duct trajectory of D in

[0213] As shown in Figure 4 , a heat exchanger is provided in the first chamber 310, and the first fin 151 is not provided. The air duct of the first chamber 310 is determined according to the layout of the heat exchanger, the heat source, the power device 20, and the fan 40. The fan 40 inside the first chamber 310 is used to accelerate the air flow around the heat source, the power device 20, and the heat exchanger. The air duct flow direction starts from the fan 40, passes through the heat source, reaches the heat exchanger, and then passes through the fan 40, thus forming a cycle, that is Figure 4 The air duct trajectory of E in

[0214] It can be understood that through the heat transfer between the power device 20 and the radiator 10 and the effective heat dissipation of the radiator 10, the entire system realizes efficient heat management, ensures that the power device 20 can operate at an appropriate temperature, and improves its working stability and reliability.

[0215] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0216] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0217] In the description of this application, the "first feature", "second feature" may include one or more of such features.

[0218] In the description of this application, the meaning of "a plurality" is two or more.

[0219] In the description of the present application, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween.

[0220] In the description of the present application, the first feature being "above", "over" or "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0221] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0222] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A radiator, characterized in that, Comprising: A condenser; An evaporator, the evaporator including a first surface and a second surface arranged opposite to each other, wherein, the first surface is provided with first fins and / or the second surface is provided with second fins; A gas pipe, the outlet of the evaporator and the inlet of the condenser are communicated through the gas pipe; A liquid pipe, the inlet of the evaporator and the outlet of the condenser are communicated through the liquid pipe.

2. The radiator according to claim 1, characterized in that The first surface has an installation area for installing a power device. When the second surface is provided with second fins, the second fins are at least arranged at positions corresponding to the installation area.

3. The radiator according to claim 1, characterized in that, The second fins are spaced apart from the outlet and the inlet of the evaporator.

4. The radiator according to claim 3, characterized in that, The height of the second fins in the third direction is lower than the height of the gas pipe and the liquid pipe to the second surface.

5. The radiator according to claim 1, characterized in that, The second fins are multiple, and the multiple second fins are spaced apart and distributed.

6. The radiator according to claim 5, wherein The multiple second fins are divided into multiple groups, and the outlet and / or the inlet of the evaporator are located between adjacent two groups of the second fins.

7. The radiator according to claim 6, characterized in that, When both the outlet and the inlet of the evaporator are arranged on the second surface, the projections of the gas pipe, the liquid pipe and the second fins on the second surface are arranged in a staggered manner along the first direction.

8. The radiator according to claim 7, characterized in that, The height of the second fins in the third direction is higher than the height of the gas pipe and the liquid pipe to the second surface, and the third direction intersects with the first direction.

9. The radiator according to claim 8, characterized in that, The second fins extend from one end to the other end in the second direction, and the first direction, the second direction and the third direction intersect pairwise.

10. The radiator according to any one of claims 1-9, characterized in that, When the first surface is provided with the first fins, the first fins are spaced apart from the installation area.

11. The radiator according to claim 10, characterized in that, The first fins are multiple, the multiple first fins are spaced apart and distributed along the first direction, and the first fins are arranged at both ends of the first surface in the first direction, and the installation area is located between the first fins at both ends.

12. The radiator according to claim 10, characterized in that, The first fins are multiple, the multiple first fins are spaced apart and distributed along the first direction, and the first fins are arranged at at least one end of the first surface in the second direction.

13. An electrical device, characterized in that, Comprising: A power device; A radiator according to any one of claims 1-12, the power device being installed on the evaporator.

14. The electrical device according to claim 13, characterized in that, Further comprising: A box body, the box body forms a first cavity and a second cavity that are isolated from each other, the second cavity is communicated with the outside, the condenser is installed in the second cavity, the evaporator has a first surface facing the first cavity, the power device is installed in the first cavity and is in contact with the evaporator; A fan, the fan is used to drive the gas flow in the second cavity.

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